Full script of the ad IN ENGLISH, REGARDLESS OF THE ORIGINAL LANGUAGE OF THE AD
CHOIR: Maker a Laker, it’s a buck a beer!
ANN: That used to be our jingle, but beer prices have gone up. New price, new jingle!
CHOIR: Maker a Laker, it’s a dollar six point six six seven a beer!
ANN: Like sand through an hourglass! Even works in Vietnamese!
CHOIR: Maker a Laker, (in Vietnamese) It’s a dollar six point six six seven a beer!
ANN: Ontario’s own Laker Beer. Only twenty-five sixty a two-four, plus deposit.
Because a higher price would be criminal.

Brief Explanation
Laker is a leading discount beer brand in the Canadian province of Ontario. The brand was notorious for its jingle (Maker a Laker, it's a buck a beer!), which was tied directly to the government's lowest legal price per beer.
When the government raised that lowest legal price, it rendered Lakers' jingle obsolete... or did it?